Bill's weight decreases from 64.8 kg to 59.3 kg. Calculate the percentage decrease in Bill's weight. Give your answer correct to 3 significant figures.

Answer
To calculate the percentage decrease, we first need to determine the decrease in weight. 1. **Calculate the decrease in weight:** Decrease = Initial weight - Final weight Decrease = 64.8 kg - 59.3 kg = 5.5 kg 2. **Calculate the percentage decrease:** Percentage Decrease = (Decrease / Initial weight) × 100% Percentage Decrease = (5.5 kg / 64.8 kg) × 100% Percentage Decrease = 0.0846 × 100% = 8.46% 3. **Rounding:** To express this answer correct to 3 significant figures, we round 8.46% to 8.46%. Thus, the percentage decrease in Bill's weight is **8.46%**.